Cisco ATM OC3 module with single POM slot NM-1A-OC3-POM= Datenbogen
Produktcode
NM-1A-OC3-POM=
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Data Sheet
Cisco 3800 Series ATM OC-3
Network Module
Network Module
Cisco Systems
®
extends WAN connectivity by adding high-speed ATM access to remote branch offices with the Cisco
®
3800
ATM OC-3 Network Module.
OVERVIEW
A 155-Mbps ATM OC-3 network module is available on the Cisco 3825 and 3845 integrated services routers, starting with Cisco IOS
®
Software
Release 12.4(3) Mainline (Figure 1). The network module supports the ATM forum standard ATM Adaptation Layer 5 (AAL5) with the following
ATM quality of service (QoS) traffic classes: unspecified bit rate (UBR), UBR+, real-time variable bit rate (VBR-rt), non-real-time VBR (VBR-nrt),
available bit rate (ABR), and constant bit rate (CBR). Voice over IP (VoIP) and H.323 over ATM is supported over the WAN using the currently
available onboard voice digital signal processors (DSPs), analog voice and fax network modules, and voice interface cards.
The network module has modular optics supporting the Cisco pluggable optical modules (POMs) and Cisco Small Form-Factor Pluggables (SFPs),
simplifying the selection of network modules from six offerings to one. The SFPs support STM-1 framing standards over multimode, single-mode
intermediate-reach, and single-mode long-reach fiber-optic interfaces. The module is a single-port module with LC-type connector. The single-mode
SFPs combined with the ATM network module provide high-speed trunking for users with access to a fiber WAN, whereas multimode is ideal for
connecting high-speed servers, switches, or hubs equipped with OC-3/STM-1 fiber connections.
Cisco IOS SP Services feature sets are required to support ATM. A maximum of one ATM OC-3 network module is recommended on the
Cisco 3825, and a maximum of two ATM OC-3 network modules are recommended on the Cisco 3845.
Figure 1. Cisco 3800 Series ATM OC-3 Network Module